| abstract |
Compounds of the general formula: <IMAGE> in which one of Y and Z is a trifluoromethyl group and the other is a halogen atom; and R<1> is a halogen atom or a lower alkyl group and R<2> is a hydrogen or halogen atom or a lower alkyl group, or R<1> and R<2> are both hydrogen atoms, are used as acaricides, e.g. in suitable compositions for applying to the above- ground portions of an agricultural crop. |